Laboratory Glassware

This Dewar trap is similar to a Dewar flask but with addition of an inner joint at the bottom and an outer joint of the same size and style extending in an upward direction from the side of jacket near the top. The inside diameter of the flask is approximately 32mm and the inside height is approximately 120mm

This Dewar shaped vacuum trap is designed to remove relatively large volumes of solvent. Can be used with rotary evaporators. Inner cylinder is charged with dry ice/alcohol or liquid nitrogen. Lower reservoir has a PTFE valve to remove condensate.